Recruitment: For our single center (VACHS) study we plan to enroll a total of 120 patients among the patients presenting for outpatient colonoscopy, 60 in each arm. Dr.Vignesh (PI) will select patients by applying the inclusion and exclusion criteria, review their VA medical record, take a history and a physical (done before every colonoscopy) and at the same time will obtain the consent for both the colonoscopy and the study. They will be randomized using a permuted block randomization scheme and allocation concealed till the start of procedure.